Cruising to an OASIS

Bridgit Boulahanis, a graduate student at Lamont-Doherty Earth Observatory, joined a team of 18 scientists from across the United States on an expedition to the eastern Pacific Ocean. Their mission: to investigate a chain of submarine volcanoes, or seamounts, along the East Pacific Rise. The OASIS (Off Axis Seamounts Investigation at Siqueros) team will be… read more

Break in Ice Shelf

Tracking Antarctica’s Ice Shelves

Lamont’s polar scientists are back in Antarctica on missions to study the continent’s ice. Ice shelves like the Ross Ice Shelf reach out over the ocean from the massive ice sheet covering the continent, and researchers are exploring how changes in climate will affect them. Flying over the ice and using remote sensing equipment, they… read more

The AUV Sentry discovered an area of seafloor where methane is bubbling up, similar to the earlier photo. The data will be used to plan the team's next dive with scientists inside a submersible. Photo: NOAA

The Future of Deep Science

Bridgit Boulahanis, a marine geophysics graduate student at Columbia University’s Lamont-Doherty Earth Observatory, joins a team of early career scientists on their way to becoming chief scientists in a training cruise focused on seafloor exploration. They’ll be getting their first experiences working with submersibles as they dive into projects ranging from cephalopod collection to acoustic… read more

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Environmental Sustainability in the Middle East

Six Columbia University students and nine students from Tel Aviv University are on a fieldwork trip from May 24-June 8, traveling to Jordan and Israel to learn about how the two countries are cooperating on environmental issues and managing shared natural resources. The trip is part of a course on regional environmental sustainability in the… read more


When Oceans Leak

Location: Off Southern Africa Team: Sidney Hemming and Allison Franzese Purpose: Ocean currents and climate Start Date: Jan. 30 – March 30, 2016 The Indian Ocean’s warm, salty water has been leaking into the Atlantic, spinning off giant eddies with the help of the twisting Agulhas Current. Studies suggest that in the past, this warm-water… read more

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Sampling the Barren Sea

Location: South Pacific Ocean Team: Frankie Pavia and Sebastian Vivancos Purpose: ocean chemistry and biology Start Date: Dec. 17, 2015 – Jan. 28, 2016 The barrenness of life and other particulate material in the clear waters of the central South Pacific allows light to penetrate more deeply than anywhere else. Columbia graduate students Frankie Pavia… read more

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Decoding the Mysteries of the Ross Ice Shelf

Antarctica’s Ross Ice Shelf covers an area the size of France and measures a few hundred meters thick above the water. It plays a critical role in stabilizing the West Antarctic Ice Sheet, and scientists are concerned about its future in a warming world. In the field, a team of scientists from Lamont-Doherty Earth Observatory,… read more


The 2015 Paris Climate Summit

The nations of the world meet in Paris starting Nov. 30 to discuss how to confront climate change. The goal: Keep global temperature from rising 2 degrees Celsius above the preindustrial average. Many scientists feel that is already impossible. But the United States, China and many other nations have committed to trying. The Earth Institute… read more


TRACES of Change in the Arctic

The U.S. GEOTRACES program in the Arctic Ocean is part of a multi-nation effort to study marine trace elements. Studying these elements can help us understand the biogeochemical responses to rapid climate change. Lamont-Doherty geochemist Tim Kenna is aboard the research vessel Healy.


Wide Ocean, Tiny Creatures

Scientists from a number of research institutions are participating in an expedition aboard the R/V L’Atalante to study how microorganisms in the South Pacific Ocean influence the carbon cycle. Lamont-Doherty Earth Observatory graduate student Kyle Frischkorn is among them; his goal is to assess how the microorganism Trichodesmium and other microbes interact, and the resulting physiological and biogeochemical impacts these processes have on marine ecosystems.